How many letters does the top answer for “pitching dangerously to one side” have?

The most common answer is careen (6 letters).

Crossword clue: pitching dangerously to one side

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

careen 6 letters wn-def

walk as if unable to control one's movements

tilt 4 letters wn-def

to incline or bend from a vertical position

on or to one side 50% similar → aside